Safe Amalgam Removal in Madrid
Mercury amalgam removal following the SMART protocol, based on Swiss Biohealth and IAOMT international standards. Full protection for you and our clinical team. Performed by Dres. Castillo, biological dentists since 1992.
What are amalgam fillings and why are they a concern?
Amalgam fillings are the silver-coloured fillings that dentists placed for decades to fill cavities. Their actual composition is often surprising: approximately 50% mercury (Hg), along with silver, tin, and copper. Mercury is the primary ingredient, and it is one of the most toxic elements found in nature.
The concern is not only the composition but the fact that amalgams continuously release mercury vapour. Every time you chew, grind your teeth, or drink hot beverages, microdoses of mercury vapour are released and inhaled directly into the lungs.
This inorganic mercury is converted into methylmercury by intestinal bacteria. Methylmercury is reabsorbed at a rate of approximately 95% in the gut, creating a continuous toxic cycle: it is absorbed, accumulates in tissues (particularly in the myelin sheaths of the nervous system), and is reabsorbed again and again.
Mercury also displaces essential minerals, especially magnesium, one of the most important cofactors for hundreds of enzymatic reactions in the body.
Symptoms associated with dental mercury exposure
Chronic exposure to mercury from amalgam fillings has been associated with: chronic fatigue, memory loss, difficulty concentrating, irritability, depression, tremors, cardiac problems, dermatitis, intestinal dysbiosis, and general weakening of the immune system.
Mercury amalgam fillings are currently restricted in children under 15, pregnant women, and breastfeeding mothers across the European Union. The US FDA has also issued specific warnings about their risks.
Our safe removal protocol
Amalgam removal is not a trivial procedure. If performed incorrectly, drilling out the amalgam without protection releases a massive amount of mercury vapour that both the patient and clinical staff inhale directly. A poorly executed removal can release more mercury than the filling would emit over years of normal use.
At Bio Salud Dental, we follow a protocol based on our clinical experience and the international standards of Swiss Biohealth and the IAOMT (International Academy of Oral Medicine and Toxicology):
Rubber dam isolation: complete isolation of the tooth to prevent amalgam fragments or vapour from contacting the oral mucosa or being swallowed.
High-volume surgical aspiration: a high-flow surgical aspirator positioned directly beside the tooth to capture mercury vapour at the moment of release.
Respiratory protection: supplemental nasal oxygen is provided to the patient so they do not inhale vapours from the treatment room. Our clinical team wears activated carbon filter masks.
Continuous irrigation: abundant water irrigation throughout the procedure to cool the amalgam and reduce mercury vaporisation.
Chunk removal: the amalgam is removed in large pieces, sectioned with minimal drilling. The objective is to lever out fragments, not to grind them into powder.
HEPA air filtration: air purifiers with HEPA filters eliminate suspended mercury particles from the treatment room.
After removal, the cavity is disinfected with ozone therapy and restored with biocompatible, BPA-free composite resins or, for larger cavities, ceramic inlays.
Why no metal belongs in your mouth
The mercury in amalgam fillings is the most urgent problem, but from the perspective of biological dentistry, no dental metal serves a function in the human body. They are foreign elements.
When a metal is placed in the mouth, it can release metal ions that bind to the body's proteins. This phenomenon is known as the hapten effect: the metal-protein complex is recognised by the immune system as a foreign substance, triggering the production of antibodies against the body's own tissues. This mechanism has been implicated in autoimmune conditions such as multiple sclerosis, Hashimoto's thyroiditis, and other chronic inflammatory diseases.
The alternative is straightforward: 100% ceramic, biocompatible materials. Zirconia implants instead of titanium. Ceramic restorations instead of metal ones. BPA-free composites instead of amalgam.
After removal: detoxification support
Removing the amalgams eliminates the active source of exposure, but the mercury that has accumulated in tissues over the years does not disappear immediately. This is why we complement the removal with a nutritional support protocol to help the body mobilise and eliminate residual mercury deposits.
Our systemic protocol includes:
Antioxidant supplementation: vitamin C, selenium, zinc, and glutathione to protect cells from mercury-induced oxidative stress.
Mineral replenishment: especially magnesium, which mercury displaces from enzymes. Restoring magnesium levels is fundamental to recovering hundreds of disrupted metabolic functions.
Liver and intestinal support: the liver and intestines are the primary pathways for mercury elimination. Proper support facilitates the body's natural detoxification process.
Nutrition and lifestyle: dietary correction, reduction of exposure to other environmental toxins, and immune system strengthening.
This comprehensive approach is what distinguishes biological dentistry from conventional practice: it is not just about removing a filling, but about restoring balance to the whole body.
Why Bio Salud Dental
Why travel to Madrid for amalgam removal?
Pioneers since 1992
Dr. Alejandro Castillo began practising biological dentistry in Madrid when few others in Spain would. Today his son, Dr. Carlos Castillo, continues the legacy. Over three decades of specialised expertise, from father to son.
Complete protocol, not just removal
We remove all amalgams in a single session, apply ozone therapy to each treated tooth, and guide you through a full detoxification protocol before and after the procedure.
Every case personally reviewed
No associates, no intermediaries. Dres. Castillo personally study your documentation and conduct every procedure. International patients travel to see them for this reason.
Frequently asked questions
What you should know
Yes. Amalgam fillings contain approximately 50% mercury, a cumulative neurotoxin that releases vapour when you chew, grind your teeth, or drink hot liquids. Mercury accumulates in the body and has been linked to chronic fatigue, memory loss, irritability, digestive problems, and immune system dysfunction. The EU has restricted amalgam use in children, pregnant women, and breastfeeding mothers. The US FDA has also issued specific warnings.
Because improper removal — drilling out the amalgam without protection — releases more mercury vapour than the filling would emit over years of normal use. A specific protocol with rubber dam isolation, high-volume suction, and respiratory protection for both patient and team is essential.
Our protocol is based on clinical experience and the international standards of Swiss Biohealth and IAOMT. It includes rubber dam isolation, high-volume surgical aspiration, supplemental nasal oxygen for the patient, continuous water irrigation, chunk removal with minimal drilling, and HEPA air filtration in the treatment room.
We use biocompatible, BPA-free composite resins. For larger cavities, ceramic or zirconia inlays may be used. We never replace a toxic material with another potentially harmful one.
We recommend a detoxification protocol both before and after removal. The pre-removal protocol prepares the body to mobilise and eliminate accumulated mercury. The post-removal protocol supports continued detoxification using high-dose chlorella, antioxidants, minerals, and liver support to help clear residual mercury deposits.
Ready to remove your amalgam fillings safely?
Share your dental case with Dres. Castillo for a personal assessment. We review every case individually and will contact you within 48–72 hours.